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Grandstream Networks, Inc. GXP1100/1105 User Manual Page 26 of 34
Firmware version: 1.0.1.110 Last Updated: 01/2012
Register Expiration
This parameter allows user to specify the time frequency (in minutes) that
GXP1100/1105 refreshes its registration with the specified registrar. The default
interval is 60 minutes. The maximum interval is 65,535 minutes (about 45 days).
Reregister Before
Expiration
This parameter allows user to specify the time frequency (in seconds) that
GXP1100/1105 sends out a re-registration request before the Register Expiration.
By default is 0 second.
Local SIP Port
This parameter defines the local SIP port used to listen and transmit. The default
value for Account 1 is 5060.
SIP Registration Failure
Retry Wait Time
Retry registration if the process failed. Default is 20 seconds.
SIP T1 Timeout
RFC 3261 SIP T1 timer. Default is 0.5 second.
SIP T2 Interval
RFC 3261 SIP T2 timer. Default is 4 seconds.
SIP Transport
Choose SIP Transport between UDP, TCP and TLS/TCP. Default is UDP.
SIP URI Scheme when
using TLS
When TLS/TCP is used (in “SIP Transport”), select “sip:” or “sips:” in this mode.
Default is “sips:”.
Use Actual Ephemeral
Port in Contact with
TCP/TLS
Enable to use actual ephemeral port in contact with TCP/TLS. Default is “No”.
Check Domain
Certificate
Enable to check the domain certificate. Default is “No”.
Remove OBP from
Route
The SIP Extension notifies the SIP server that it is behind a NAT/firewall.
Validate Incoming
Messages
This configuration selects whether or not the incoming messages should be
validated.
Support SIP Instance ID
Selects whether or not SIP Instance ID is supported.
NAT Traversal
This parameter activates the NAT traversal mechanism. It has options: No, STUN,
Keep-Alive, UPnP, Auto, VPN.
If selecting STUN and a STUN server is also specified, the phone performs
according to the STUN client specification. Using this mode, the embedded STUN
client detects if and what type of NAT/Firewall configuration is used. If the detected
NAT is a Full Cone, Restricted Cone, or a Port-Restricted Cone, the phone will use
its mapped public IP address and port in all of its SIP and SDP messages.
If selecting Keep-
A
live with no specified STUN server, the GXP1100/1105 will
periodically (every 20 seconds or so) send a blank UDP packet (with no payload
data) to the SIP server to keep the “hole” on the NAT open.
SUBSCRIBE for MWI
Default is “No”. When set to “Yes” a SUBSCRIBE for Message Waiting Indication
will be sent periodically.